Concrete-wall-building device.



PATENTED DEC. 25, 1906.

J. MILAM. CONCRETE WALL BUILDING DEVICE.

APPLICATION FILED MAB.12,1908.

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a, W! a i PATENTED DEC. 25, 1906.

J. MILAM. CONCRETE WALL BUILDING. DEVICE.

APPLICATION FILED M43. 12, 1906.

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STATES PATENT Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed arch 12, 1906. Serial No. 305,518.

To ctZZ whom it may concern:

Be it known that I, JAMES MILAM, a citizen of the United States, residing at Kansas City, in the'county of /Vyandotte and State of Kansas, have invented certain new and useful Improvements in Concrete-Wall- Building Devices, of which the following is a specification.

My invention relates to apparatus for use in building into ral concrete walls as distinguished from tliose composed of separate blocks laid in cement or mortar, and more particularly to molds of thatclass which can be withdrawn after the concrete therein has become sufiiciently hardened to support the molds for and the succeeding course of concrete.

One object of my invention is to provide improved means for adjusting the walls of the mold'accurately to vertical position when necessary, so that thewall is kept plumb during construction.

A further object is to produce a mold having a seat-bar which may be withdrawn from either side of the wall to facilitate construction and reduce the cost of erection.

A still further object is to provide moldlates which are interchangeable from the inner to the outer side of the wall, or vice versa, and thus avoid the cost of a duplicate set of plates. I

With these and other objects in view the invention consists in certain novel and peculiar features of construction and organization, as hereinafter described and claimed, and in order that it may be fully understood reference is to be had to the accompanying drawings, in which- Figure 1 is a side elevation of an apparatus embodying my invention. Fig. 2 is a vertical section thereof, taken on line II II of Fig. 1. Figs. 3 and 4 are detail sectional views of the connections between one of the overarches and a seat-bar, the forms being indicated by dotted lines. Fig. 5 is a detail'sectional view of a portion of Fig. 2. Fig. 6 is an inside elevationof one of the stone-pitch Fig. 7 is a view similar to Fig. 2, illustrating the plumbing of the forms upon an uneven wall-surface. horizontal section taken on ine VIII VIII of Fig. 2. Fi 9 is a perspective view of the sea-than Fig. 1G is an edge view of one of the plain forms. Fig. 11 is a detail sectional view of a portion of Fig. 2. Fig. 12 is a view Fl .8 is an enlarged of one of the parts detached. Fig. 13 is a lan view of one of the arch-bars.

In the said drawings, 1 and 2 indicate iron plates or forms adapted to be assembled to form the inner and outerwalls of a mold, the bottom of which is formed by the upper surface of that portion of the wall previously formed, excepting that the first course of the wall is constructed as hereinafter described.

3 indicates a portion of a concrete wall shown as constructed with this apparatus, the inner side of the wall a peering in Fig. 1.

The series of forms whic are in use at any time are partially on ported by a lower series of forms which are eft upon the Wall until 'the upper series have been filled with material. Thus in Fig. 2 the lower forms 1 and 2 have been filled and remain upon the wall, while the upper forms 1 and 2 stand ready to receive the material to form the next course.

The forms are held in position by means of overarches, which are supported by transverse .bars laid upon the finished portion of the wall, as shown in Fig. 8. These bars are tapered in breadth and thickness, (see Figs.

8 and 9,) so that after they are embedded in the well they may be easily withdrawn.

Each baror seat-bar 4 is provided near its ends with openings 5, adapted to'receive, respectively, a pair of blocks 6, to which the upright members of the overarch are connected, as shown in Figs. 3 and 4. From openings 5 recesses 7 are out inwardly in the seat-bar to receive the lugs 8, formed on the lower corners of each form 1 and 2. The recess 7 at the smaller end of the bar is preferably extended inwardly a short distance, as shown, thus forming a small cavity which is to be filled with concrete 0,. In order. to permit of the extraction of the seatbar, its smaller end is formed with an opening 9 of suflicient width to clear the pillar of' concrete at when the bar is extracted. A small pillar b may also be formed through the inner end of the otherrecess 7, but is unobjectionable, because it will readily break under the pressure applied by the seat-bar when the latter is extracted.

In order to permit of the use of interchangeable forms, the larger end of the seatvbar is reduced, so that parts 10 thereof are of the same thickness and breadth as parts 11 at the opposite end of the bar. The recesses 12 in the lower edges of the forms which fit over said parts 10 and 11 maythus plates, this spacingbeing desirable. to facili tate. the assembling of the parts and their separation, it being also noted that the thin flange orlbread of concrete which will enter said spaces will readily break as the seat-bar is extracted.

For every two pairs of terms an overarch is provided, saidovcrarchcomprising a pair of standards 15 and 16 of unequal 'length,:am

extensible connecting member 17 18, and a device for adjusting the inclination of the standards, as hereinafter described. The extensible connecting or arch member 17 1.8

is votal-ly connected to the standards 15 I an 16 at 1.9 and 20., respectively, and the lower end of each stand and is provided with The blocks 6, hereinbefore hinge-lugs 21. mentioned, each comprise a body portion, a pair of laterally-projecting lugs 22, and an upwardly-projecting hinge-lug 23,,said lugs 23 being connected by pins 24 to the hinge lugs 21 of the standards 15 and '16.

The standard 1 5 :above the connection 19 The arch-bar 17 18 is also provided .near standard 16 withhinge-lugs .28., between which is pivoted a block 29, provided with a cylindrical stem .30, on which a collar 31 is retained a cotter 32. stern between block 29 and collar 31 is one end of a turnbuckle 33, t'l'ie op osite end. engaging the screw 2.7; The turn uckle and screw 27 form the hypotenuse-of a rightangle triangle, as shown in Fig. 2, and it is clear that when the buckle 33 is turned it will either increase or decrease the distance between pivots 2'8 and 25. The efiect of such adjustment is hereinatter described.

An overarc-h is set up by inserting the pivotally-attached blocks 6 in the openings 5 of a seat-bar 4 in contact with the forms or in position to receive the forms, as the case may be, and the lugs 22 will rest aon the seat-bar at .34, Figs. 1 and 11.. he blocks 6 being the full width of the openings 5 are prevented bysh oulders 35 from slipping inwardly and are rigidly secured in place by Wedges'36, driven against their outer faces throu openings Eac form-plate 1 and 2 is provided near its ends u nits outer face with two hooklugs 37, w 'ch on go the edges of-standards 15 and 16 to ho d the plates upright, the hingedugs of the standards being made sufficiently narrow to slide between the ends 01 the hook-1n 37, so that the standards may be lifted wit out disturbing the tier of for-ms is provided with hinge-lugs 25, to which ispivcted the squared ead 26 of a screw 27..

LSWlVQlGCi on the which are left uponthe wall to support the following tier.

Each of the blocks '6 is provided on its inner face with a recess or groove 38, as shown in Figs. 11 and 12, and each form 1 and 3 is provided on its outer face with a projection '39 to fit within the recess 38 of the juxtaposed block 6, clamped in place by a wedge 36. Thus when the wedges are in position it is obvious the standards are anchored to the lower tierof forms and cannot become accidentally raised while in use.

The arch member is located far, enough above the forms to permit the workmen to operate freely thereunder when leveling or smoothing theconcreteand is varied in length by endwise adjustment of the bars 17 18., a bolt 40, carried by one of the bars, engaging one of a series of holes 41 in the other, as shown in Fig. 13. It is not necessary to make the seatsbars 4 adjustable :as tolength to accommodate walls'of different thickness,

,as they may be cast in different lengths and one of the proper size be selected to accommodate the length of the arch member.

If in the erection of a wall one of theseatbars should occupy a lower plane than its neighbors at either side because of unevenness in the top wall, the super osed formplates can be brought to the love of the contiguous plates on the higher portions of the wall, .because each form-plate is provided with a pair of outwardly-projecting lugs 42 near its lower corners, which lugs overlie the ends of the seat-bar in order that wedges 42 (shown-in Fig- .1) may be driven between said :bar andsaid lugs, these wedges elevating the adjacent ends of the form-plates until they occupy the same level as the contiguous form- :lates.

Ha fof the number of forms employed'may be provided on the inner side with marginal flanges 4-3 and 44., so as to groove the wall in imitation of the blocks of a stonewall.

' Where the wall is to be imitation stonepitch on both sides, the flanged forms 2 are set up at both the inner and outer sides of the wall. If the wall is to be plain-faced on both sides, the lain forms only are used. The fact that all of the fetus-plates are identical in construction at their lower corners and that the seat .ortionsof the seat bars are of equal size an form makes it possible to use any :plate at either side of a'wall.

It is obvious that the seat-bar can be arranged with its body anti-on tapering to the outer side of thewa or to the inner side.

accord" as it is found most convenient to V extract t; is bars from the or outer sideofa wall. Ordinarily they are withdrawn at the inner -s'ide-; but in some cases where an external sea/fielding is employed it will be.

more convenient to extract the seat-bars from the outer side.

Because of the peculiarity ot'the connecrestore them to their original positions.

scenes tion between the overarch, wall-plates, and seat-bar it will be apparent that the wall: plate can be lifted vertically the length of their lugs 8 and then drawn endwise from engagement with the overarch-standards and that the reversal of this manipulation wIill n otherwords, because of the peculiar construction and relation of the parts mentioned the continue the upward taper of the wall.

In erecting a wall it is preferable to first provide a bed of cement or concrete upon the foundation and to level said bed. A seat-bar is placed transversely upon this bed at a proper point, and an overarch is then placed with its blocks 6 fitting in the openings 5 in said bar and clamped therein by wedges 36, the turnbuckle being manipulated to cause the standards of the overarch to assume avertical position if one end of the seatbar is slightly lower than the other. form-plates 1 and 2 are then caused to engage the seat-bar and standards of the over arch. Similar molds are then set upon the bed until the circuit of the Wallis made or as much thereof as is desired and then said molds are filled with concrete and the upper surface of the latter is leveled flush with the upper edges of the forms. The overarches are removed after first extracting. the wedges 86 by being slid vertically up through and between the hook-lugs 37 of the juxtaposed form-plates.

For the next course a second series of seat bars are laid u on the wall and u on the upper edges of t e form-plates emb same, the second series of seat-bars being preferably arranged staggered with relation to those immediately below. The overarches are then placed upon this second series of seat-bars, anda second set of form-plates are secured to said seat-bars and overarches to provide the forms for a second course of concrete, which. second course, it will be noticed, (by. reason of the position of the adjacent tiers of seat-bars,)' is produced with a breakjoint efi'ect, provided the formlates are of the proper type to cause such e ect. After the second course of the wall is finished-the seat-bars of the course beneath may be re moved from the wall by simply pulling them endwise, and in this connection it will be noticed that the pillara of concrete will not prevent-the extraction of the seatbars, be

A pair of racing the cause the slots 9 are of such width that their opposite walls will pass the opposite sides of said pillars. The holes left in the wall by the removal of the seat-bars will be filled u in any suitable manner.

From the above description it will be apparent that I have produced a concretewall apparatus embodying the features of advantage enumerated as desirable, and I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications may occur to a person skilled'in the art. -Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In concrete-wall apparatus, a seat-bar of tapering form and having seat portions at opposite ends of the tapered portion, said seat portions being of substantially the same cross-sectional area.

2. In concrete-wall apparatus, a seat-bar of'tapering form and having seat portions at opposite ends of the tapered portion, said seat portions being of substantially the same cross-sectional area, and provided with openin s.

3. In concrete-wall apparatus, a seat-bar of tapering form and having seat portions at opposite ends of the tapered portion, said seat portions being of su )stantally the same cross-sectional area and provided with open-' ings the seat portions at the smaller end of the tapered portion being slotted from the extremity of said seat portion to the opening therein.

4. In concrete-wall apparatus, a seat-bar of tapered form and havin seat ortions at its opposite ends and provi ed wit openings 111 said seat portions having extensions through the contiguous ends of the tapered portion of the bar, the seat portion at the smaller end of the tapered portion having a slot extending from the extremity of said seat portion through the openings therein.

5. In concrete-wall apparatus; a bar com prising a tapered body portion terminating at its smaller end in a seat portion and provided at its larger end with a seat .portion of. substantially the same width as the first-named seat portion and narrower than the end of the body portion from which it projects, said seat portions being provided with openings.

6. In concrete-wall apparatus, a bar comprising a body portion which tapers in width and in thickness from one end to the other and rovided at its smaller end with a seat portion of substantially the same cross-Sectional area as the smaller end of the body portion and rovided at its opposite end with a seat portion of less width and thickness than said end; said seat portions being provided with openings.

7. In concrete-wall apparatus, a bar come prising a body portion which tapers in width and in thickness from one end to the other and is provided at its smaller end with a seat portion of substantially the same cross-sectremity of said seat portion to the opening therein.

8. The combination of a seat-bar comprising a body portion which tapers from one end to the other, and a pair of seat ortions forming extensions of said bar and o substantially the same cross-sectional area as the smaller end of said bar; said seat portions having openings, and a mold comprising two pairs of wall-plates, one pair resting on eachseat portion and having their ends abutting, andprovided with lugs depending into said openings.

9. The combination of a seat-bar comprising a body portion which tapers from one end to the other, and a pair of seat ortions forming extensions of said bar and 0? the same cross-sectional area as the smaller end of said bar, said seat portions having openings; a mold comprising two pairs of wall-plates, one pair resting on each seat portion and having their ends abutting, and pro-.

vided with lugs depending into said 0 nings, and means for clamping said wall-p ates inwardly against the seat portions of the seat-' horizontal grooves to engage said lugs, and

bar.

10. In concrete-wall apparatus, a 'mold comprising a air of abutting outside wallplates, a air 0 abutting inside walllates, a seat-bar or said wall-plates, blocks 0 am ing said plates inwardly against portions 0 the seatar, a pair of standards pivoted to said blocks and overlapping the abutting ends and engaging the outer sides of said plates, an

arch-bar pivotally connecting said standards, and means for varying the angle of the archbar with respect to the standards to cause the rear wall-plates to assume angular relations with respect to said bar.

11. In concrete-wall apparatus, a horizontal seat-bar having near its ends two open ings, two blocks detachably fitting in said openings, two standards ivotally supported by said blocks, an arch-Ear having its ends pivotally connected to the standards, and means for normally holding said parts in rigid relation and for varying the angle between the standards and the-seat-bar at times.

12-. In concrete-wall apparatus, a horizontal seat-bar having near its ends two open ings, two blocks detachably fitted within said openings, two standards pivotally sup cited by said blocks, form-plates provide 'with hook-lugs which engage the standards, an

arch-bar having its ends pivotally connected substantially ing said parts in rigidrelation and for varyto standards, and means for normally holding the angle between the standards and the I seat-bar at times. i

13. In concrete-Wall apparatus, a plurality of form-plates which are interchangeable for inside or outside use, in combination with a horizontal seat-bar provided near it's-ends with two equal-lydimensioned seats adapted to take into equally-dimensioned recesses in the lower edges of the form-plates, said seatbar being tapered from one of said seats to the other.

. 14. In concrete-wallapparatus, the combination of wall-plates adapted to engage op- .posite sides of a Wall and provided with external lugs, a seat-bar adapted to bridge the space between said wall-plates provided with seat ortions projecting beyond said plates and ormed with openings, blocks resting upon said seat portions and de ending through the said openings and provi ed with horizontal grooves to engage said lugs, and

means to secure said blocks in the relation described. Y

15. In concreteewall apparatus, thecombinationof wall-plates adapted to engage opposite sides of a wall and provided With external lugs, a seat-bar adapted to brid e the space between said Wall plates provide with seat ortions projecting beyond said plates andf ormed with openings, blocks resting uplpn said seat portions and depending t ough thesaid openings and provided with wed es to be forced into said openings outwe of the blocks to clamp the same against the outer side of the Wall-plates.

16. In concrete-wall apparatus, the combination of wall-plates adapted to engage oploo ternal lugs, a seat-bar adapted to bridge the extending through-the hook-lugs t ereof and pivoted at theirlower ends 'to said blocks, and means toclam said blocks against the outer sides of the'i 'st-named and abutting wall-plates.

I7. In'eoncret'e-wallapparatus, the combination of a seat-bar to rest upon a wall,

provided with seat portions projecting beyond the sides thereof andprovid'edwith openings, abutting wall-plates above and provided with lugsdepending through-the openings of the seat portions, blocks secured x c 5 posits sides of a Wall and provided with ex- 7 ing ends of the Wall-plates.

to the seat portions, an overaroh overlapping sas es 5 groove in itsinner face, laterally-projecting lugs resting upon the seat-bar at opoosite sides of said openin s and upWardly-pr0 eot- 1 i'ng lugs outward 0 the laterally-projeoting ugs.

In testimony the presence the outer sides of the abutting ends of the Wall-plates, hook-lugs upon said wall plates engaging the overaroh, lugs projecting fromthe lower corners of the Wall-plates and disposed over said seat portions, and Wedges to ht between the last-named lugs'and the seat po tions to vertically whereof I affix my signature of two witnesses.

JAMES MILAM.

i in adjust the correspond- 18 The combination of a seat-bar having i Witnesses: openings, bloc-ks depending through said H. C. RODIGE'RS, openings and provided With a horizontal Y. THORPE. 

